SERVICE MANUAL
CONTENTS
1. TECHNICAL CHANGES ··································· 2
2. PART NAMES AND FUNCTIONS ····················· 4
3. SPECIFICATION ················································ 5
4. NOISE CRITERIA CURVES ···························· 13
5. OUTLINES AND DIMENSIONS ······················ 15
6. WIRING DIAGRAM ·········································· 19
7. REFRIGERANT SYSTEM DIAGRAM ············· 25
8. PERFORMANCE CURVES ····························· 32
9. ACTUATOR CONTROL ··································· 59
10. SERVICE FUNCTIONS ···································· 60
11. TROUBLESHOOTING ····································· 64
12. DISASSEMBLY INSTRUCTIONS ···················· 89
INDOOR UNITS COMBINATION SHEETS
Models
No. OBH554
REVISED EDITION-D
HFC
utilized
R410A
SPLIT-TYPE AIR CONDITIONERS
MXZ-4B80VA
OUTDOOR UNIT
Indoor unit service manual
MSZ-FA•VA Series (OB371)
MSZ-FD•VA Series (OBH488)
MSZ-GA•VA Series (OB378, OB388)
MSZ-CB•VA Series (OB441)
MSZ-GC•VA Series (OBH468)
MSZ-GE•VA Series (OBH515)
MSZ-SF•VA Series (OBH555)
MFZ-KA•VA Series (OB409)
MLZ-KA•VA Series (OBH483)
NOTE:
RoHS compliant products have <G> mark on the spec name plate.
PARTS CATALOG (OBB554)
Please void OBH554
REVISED EDITION-C.
MXZ-2B30VA -
E1
MXZ-4B71VA -
E1
MXZ-2B40VA -
E1
MXZ-4B80VA -
E1
MXZ-2B52VA -
E1
MXZ-5B100VA -
E1
MXZ-3B54VA -
E1
MXZ-3B68VA -
E1
Revision D:
• FAILURE MODE RECALL FUNCTION
has been corrected.
• Some descriptions have been modified.
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